Home / 66,428-99,712

Finding the Third Proportional to 66,428 and 99,712

Calculator

Solution

The third proportional to 66,428 and 99,712 is: 149,673.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428 : 99,712 = 99,712 : x
  2. Step 2: Convert to fraction form
    66,428/99,712 = 99,712/x
  3. Step 3: Cross multiply
    66,428x = 99,712 × 99,712
  4. Step 4: Simplify right side
    66,428x = 9,942,482,944
  5. Step 5: Solve for x
    x = 9,942,482,944/66,428
  6. Step 6: Final answer
    x = 149,673.07

Related Problems

Find third proportional to 33,214 and 49,856
Half scale
Find third proportional to 132,856 and 199,424
Double scale
Find third proportional to 66,430 and 99,715
Similar ratio
Find third proportional to 99,642 and 149,568
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.